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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4167) Hive converts bucket map join to SMB join even when tables are not sorted
Date Tue, 16 Apr 2013 17:41:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13633062#comment-13633062
] 

Hudson commented on HIVE-4167:
------------------------------

Integrated in Hive-trunk-hadoop2 #162 (See [https://builds.apache.org/job/Hive-trunk-hadoop2/162/])
    HIVE-4167 Hive converts bucket map join to SMB join even when tables are not sorted
(Namit Jain via Ashutosh) (Revision 1468349)

     Result = FAILURE
namit : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1468349
Files : 
* /hive/trunk/ql/src/java/org/apache/hadoop/hive/ql/optimizer/AbstractSMBJoinProc.java
* /hive/trunk/ql/src/test/queries/clientpositive/auto_sortmerge_join_11.q
* /hive/trunk/ql/src/test/results/clientpositive/auto_sortmerge_join_11.q.out

                
> Hive converts bucket map join to SMB join even when tables are not sorted
> -------------------------------------------------------------------------
>
>                 Key: HIVE-4167
>                 URL: https://issues.apache.org/jira/browse/HIVE-4167
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.11.0
>            Reporter: Vikram Dixit K
>            Assignee: Namit Jain
>            Priority: Blocker
>         Attachments: hive.4167.1.patch, hive.4167.2.patch, hive.4167.3.patch, hive.4167.4.patch,
hive.4167.4.patch-nohcat, HIVE-4167.patch
>
>
> If tables are just bucketed but not sorted, we are generating smb join operator. This
results in loss of rows in queries.

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